19994352 has 60 divisors (see below), whose sum is σ = 60092136. Its totient is φ = 5712000.

The previous prime is 19994323. The next prime is 19994353. The reversal of 19994352 is 25349991.

It is a super-2 number, since 2×19994352² = 799548223799808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19994353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1899 + ... + 6602.

Almost surely, 2^19994352 is an apocalyptic number.

19994352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19994352 is an abundant number, since it is smaller than the sum of its proper divisors (40097784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19994352 is a wasteful number, since it uses less digits than its factorization.

19994352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8526 (or 8513 counting only the distinct ones).

The product of its digits is 87480, while the sum is 42.

The square root of 19994352 is about 4471.5044448150. The cubic root of 19994352 is about 271.4162075360.

The spelling of 19994352 in words is "nineteen million, nine hundred ninety-four thousand, three hundred fifty-two".